None but optional memory cards called the Turbo Amiga RAM and Dragstrip were available

Ram Type:

RAM cannot be added directly

This is quite a complicated accelerator with many of the details not
being clear, it is however one of the earliest accelerators made for
the A2000, if not the first. It appears to consist of an accelerator
board which plugs into the CPU Fast Slot of which there are two
versions. The two versions only seem to differ in the FPU onboard. A
second card plugs into a ZorroII/Ranger slot which is attached to the
accelerator via ribbon cables called the 16/32 converter, also
containing 4 LEDs. The 16/32 converter also has a pin grid array
labelled as the "General Purpose Area" which appears to be a facility
for letting you add your own electronics.

Additional RAM can be added via optional RAM cards called the
Turbo Amiga RAM and the Dragstrip. The Turbo Amiga RAM contains between
512K and 2MB of Static RAM.

The card can be used in 68000 mode for compatibility reasons with older software, by setting a jumper.

Note, this accelerator was used in the A1000 Tower Kits called
the CSA Turbo Amiga Tower and Turbo Amiga Box and infact the photos
shown on this page appears to be from that unit as it shows the
"busboard" in addition to two RAM Cards. I'm not absolutely certain
this accelerator was available separately for the A2000.